US2018456A - Embroidering or like machine - Google Patents

Embroidering or like machine Download PDF

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Publication number
US2018456A
US2018456A US597876A US59787632A US2018456A US 2018456 A US2018456 A US 2018456A US 597876 A US597876 A US 597876A US 59787632 A US59787632 A US 59787632A US 2018456 A US2018456 A US 2018456A
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United States
Prior art keywords
needle
shuttle
gear
shaft
lever
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Expired - Lifetime
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US597876A
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English (en)
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Jonas Hans
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Individual
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Individual
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C7/00—Special-purpose or automatic embroidering machines

Definitions

  • This invention relates to an embroidering or sewing machine for making flat-stitch work in which an oscillatory needle in cooperation with a rotary shuttle is employed, said oscillatory needle being adapted to move laterally while retaining its vertical position, the extent of said lateral movement being adjustable while the device is operating where such machine is fitted with the crank operating means for changing the plane of needle oscillation and direction of feed transverse thereto, this adjustment of width must be also independent therefrom.
  • the lateral oscillatory movement of the needle and variation of its width or amplitude is derived from .a lever, the fulcrum of which is shiftable at will of the operator (i. e.
  • This needle bar is composed of two parts connected'together by means of a slot and pin coupling, and the lower needle carrier member of the bar is combined and in enagement with sliding guides and oblique slot members in such a manner that in the operation of the machine it has imparted thereto a lateral oscillation the extent of which may be adjustably controlled.
  • the slot of the pin and slot coupling above referred to is, according to a feature of the invention, arc-shaped, the curvature of this arc conforming approximately to a portion of the circular path of the tip of the shuttle.
  • This feature renders it possible that the shuttle tip or hook can follow the oscillatory path of the needle. But, for constantly and automatically accommodating the position of the needle tip during the rotation of the shuttle so that the shuttle hook will always be in correct position with relation to the needle eye, in whatever position the needle is placed and irrespective of the extent of oscillation of the needle, it is necessary to alter the speed alternately by retarding or accelerating the speed. This is effected according to the inven tion by employing a differential gear, as hereinafter set forth.
  • Figure 1 is a front elevation with parts broken away and in section, showing a crank embroidering machine constructed according to the present invention, and showing only so much of the sewing mechanism as is essential to the disclosure of the invention.
  • Figure 2 is a side view of the shuttle driving gear of Figure 1.
  • Figure 3 is a front view of the needle and shuttle in a different position as compared with Figure 1.
  • Fig. 4 shows a modified construction of a differential gear applicable instead of the difierential gear shown in Figure 1.
  • Figures 5 and 6 are a modified form of the shuttle driving gear with the differential gear dis- 10 posed within the carrier of the shuttle.
  • Figure '7 is a diagrammatical view of parts shown in Figures 5 and 6.
  • Fig. 8 shows in detail a rear view of the twopart needle bar with guide pin and arcuate slot 1 connection.
  • Fig. 9 is a view detached from Fig. 1 showing in a greater scale the needlecarrier block with the oscillatory needle-bar member, which is a separate part of the needle bar and connected g therewith by pin and slot connection.
  • Fig. 10 is a rear view of Fig. 9.
  • Fig. 11 is a side view of Fig. 9 as shown from the right side thereof.
  • Fig. 12 is a longitudinal section, showing the g5 disposition of the movable parts not seen in Fig. 11, and
  • Fig. 13 is an elevation, viewed from the left of Fig, 1, of a certain adjusting rod and associated parts. 3
  • FIG. 1 A is the arm within which the main shaft A and the other accessories of an ordinary crank embroidering machine are enclosed; and in the drawing (Fig.
  • the cam c rotated by motion derived from the main shaft is arranged so as to reciprocate up and down a link m, which is articulated to the tail piece m;
  • the pivoting point of the two-armed lever, composed of the parts a and m is not a stationary one, but comprises a pin 16a located on .an adjustable slide 15 connected with a pivoted rack extension l9 and engaging a. slot I62) in the rear of lever l6.
  • the arm a is provided with a depending bracket embracing a collar 8, which supports a carrier bar N, extending downward parallel to the needle-bar N, which as shown in Fig. 8, is composed of two parts, an upper part n and a lower part 11. forming the carrier of the needle.
  • the needle-bar n is formed in its upper part tubularly, as clearly shown in Figs. 9-12 and passes within the needle-bar tube 10, which is rotatably arranged, its turning movement being derived in known manner, simultaneously with the corresponding turning movement of the shuttle device, from the usual crank operating gear, the crank of which is indicated at h in Fig.
  • This tube 10 is not, however, capable of vertical movement andis integral with a carrier casing or block ll embracing as movable parts a transversely guidedcross-head 12 for which sliding ways are provided in an intermediate wall 13 of the block I I and are engaged by the guide-pins 14; whilst thelatter are both secured to the said cross-head, 'IZslidably located at the front side of the wall 13 (Figs. 9 and 12), they are also rigidly connected at the opposite side with a shifting block 15 (Figs. 10 and 12), which forms the vertical guide-way for the; lower needle bar member 12. (Fig, 1').
  • a shifting block 15 Figs. 10 and 12
  • this member though maintaining its vertical position regardless of the transverse displacement of 'the cross head lzgwith adjacent shifting block- 15, is connected with the upper part n of the needle-bar; by a; stud i engaging with an arcshaped slot 9', so that it is moved up and down by the reciprocatory movement of this bar n.
  • an index arm a (Fig. 1) connected with the nose of the periodically swinging lever, shown in the upper part of Fig. l and provided with a forked end engaging with a stud a. of the 6 slide b.
  • the arc-shaped slot s has the same or nearly the same curvature as the circular path of the nib of the rotary shuttle, em-
  • the needle tube enclosing the above described parts is turnable in known manner around a vertical axle; the turning movement is effected by the hand crank h (as indicated by dotted lines 15 in Fig. 1) arranged at the bottom of the machine.
  • the gear serving to transmit the rotation is only partly shown in the lower part and is combined with the means for driving the rotary shuttle; the plane of its rotation is set vertically and in m alignment of, the needle tube axis.
  • the transmitting gear comprises according to Fig. 1 the bevel gears l, 2, the-shafts 3 and 4 and the bevel wheels 5 and 6.
  • a bevel wheel gear 'l, 8, 9 the cage-like shuttle carrier l0 oonl5 nected with bevel wheel 9 is. imparted its rota:- tion which agrees with the needle bar accessory rotation imparted to it from'above.
  • a rotating shuttle g is used and the drive imparted to it immediately from below by means so of a pair of bevel wheels I I, I2 from a divided line of shafting u, v, w, which, by means of shaft w. is, imparted drive from the main shaft A situated above taking it up through bevel wheels I3, l4 1 at shaft 12 and conducting it through diiferential ll gear d to the other side of shaft u.
  • Fig. 1 shows a lever arm 2.
  • This setting device coacts with lever m and guide member l6, and consists of a tooth segment ['8 turnable by knee abutment lever :c by means of toothed gear shaft I1, rack segment l8 to the right or left, whereby through. member IS the lever fulcrum is adjusted for greater or smaller amplitude of oscillation.
  • Figs. 1 and 2 the drive of the shuttle is transmitted by wheel gearing M, 42, 43, 44 enabling a conversion to any higher speed.
  • Fig. 4 another type of diiferential gear is shown which can be used in connection with the arrangement of Figs. 1-3, and which is therefore drawn below Fig. 2 so that the drive derivation to shaft 0 (Figs. 1 and 2) of the catcher gear is rendered possible.
  • Shaft 12 connected with the differential gear d (Fig. 1) opposite shaft 1) carries a bevel wheel 6
  • the adjustable and turntable steep thread screw 60 Within the hub of the latter, provided with corresponding thread, there is the adjustable and turntable steep thread screw 60 the stroke position of which is alterable, through lever 3'! similar to lever 38 in Fig. 5, by means of engagement with an annular groove at the screw shaft, the alteration being according to the extent of oscillation of the needle at the time being.
  • the screw shaft continues at the top in a tube 63 for reception of a shaft 0. This is provided with pivot 54 sliding in a slot of tube 63 whereby the rotation is transmitted to the shaft irrespective of the stroke alteration.
  • the shaft may be arranged as in direct connection with shaft 0 (Figs. 2 and 1) and then, by means of the di'nerentially acting screw gear (SI, 62, 60) takes up the driving rotation transmitted with speed increase or decrease in the same way as in connection with the differential gear p, q, r in Fig. 1.
  • Figs. 5, 6 and '7 show a modified construction for carrying out the invention.
  • an adjusting arm 38 is made a direct means in order to bring about the adjustment regarding the position of the tip of the shuttle relatively to the reciprocating needle.
  • the shuttle casing is turnable by a vertical shaft 39 and carries, by means of a side bracket 40, the wheel gear 45, 46, 41, wheel 4'! of which effects the drive for the rotating shuttle g Wheel 41 and the shuttle are both supported on a tiltable part 40 of bracket 40.
  • a tilted position is shown in Fig. 7 indicating the link parts 48, 49, 50 by which the motion is transmitted.
  • Guide arm 48 is secured to a collar or socket 48 which is supported on the upper end of shaft 39. The latter is lifted or lowered by the lever 38 being operated in unison with the index lever z.
  • the shaft or spindle 39 provided with collar 39 extends axially through the wheels I2 and 9 and when moved, transmits an adjusting motion to the tilting part position 40.
  • the rotation drive is transmitted by wheel 9 and independently on wheel train 45, 46, 41 mounted on supporting bracket 48 by pairs of bevel wheels H I2 or 5!, 52.
  • the tip of the shuttle forwards and backwards in accordance with the extent of oscillation of the needle so as to be always in correct position to the needle.
  • an embroidering or sewing-machine of the type specified for making fiat-stitch work having a rotary shuttle, a two-part needle bar having a needle carrying part capable of an oscillatory lateral movement transverse to the feed of the Work, means for reciprocating the needle bar vertically and means for simultaneously imparting to the needle carrier part an oscillatory 2 movement, a device whereby the operator is independently enabled to vary the said amplitude of the oscillatory movement of the needle and which device comprises an index member participating in the said movement proportioned to the oscil- 2 lation amplitude, a transmitting gear deriving from the machine main shaft the normal drive motion for the rotary shuttle, the said transmitting gear comprising a diiferential gear, the adjusting member of which is operatively connected 3 with the above-mentioned index member so as to move automatically in unison therewith, thus imparting to the speed of the rotary shuttle a correspondingly retarding or accelerating effect with the result that the tip of the rotating shuttle is presented always in correct position to the
  • a two-part needle bar 4 having a needle carrying part capable of an oscillatory lateral movement transverse to the feed of the work, means for reciprocating the needle bar vertically and means for simultaneously imparting to the needle carrier part an oscillatory movement, a device whereby the operator is independently enabled to vary-the said amplitude of the oscillatory movement of the needle and which device comprises an index member participating in the said movement proportioned to the oscillation amplitude, at transmitting gear deriving from the machine main shaft the normal drive motion for the rotary shuttle, the said transmitting gear driving with uniform speed,
  • a two-part needle bar having a needle carrying part capable of an oscillatory lateral movement transverse to the feed of the work, means for reciprocating the needle bar vertically and means for simultaneously impendently enabled to vary the said amplitude of the oscillatory movement of the needle and which device comprises an index member participating' in the said movement proportioned to the oscillation amplitude, the said transmitting gear imparting a uniform speed to a tubular arbor centrally located within the yoke carrying the shuttle driving 'mechanism, which comprises a tilting top part carrying the shuttle and its companion pinion inepicycloidal position to a sun wheel so as to receive from the latter the normal drive transmitted bythe said central arbor,-the

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US597876A 1931-06-20 1932-03-10 Embroidering or like machine Expired - Lifetime US2018456A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB150628D DE583893C (de) 1931-06-20 1931-06-20 Vorrichtung zum Einstellen der Greiferspitze zur jeweiligen Nadelbahn bei Kurbelstickmaschinen

Publications (1)

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US2018456A true US2018456A (en) 1935-10-22

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ID=7966145

Family Applications (1)

Application Number Title Priority Date Filing Date
US597876A Expired - Lifetime US2018456A (en) 1931-06-20 1932-03-10 Embroidering or like machine

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US (1) US2018456A (de)
DE (1) DE583893C (de)
FR (1) FR730878A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2966869A (en) * 1955-11-10 1961-01-03 Wittenberge Naehmasch Veb Zig-zag sewing machine
US3481291A (en) * 1967-07-03 1969-12-02 Jurgen Schilling Device for temporarily interrupting stitch formation in automatically controlled embroidering machines
US4075955A (en) * 1977-01-10 1978-02-28 Mattel, Inc. Machine for needlepoint or the like

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2966869A (en) * 1955-11-10 1961-01-03 Wittenberge Naehmasch Veb Zig-zag sewing machine
US3481291A (en) * 1967-07-03 1969-12-02 Jurgen Schilling Device for temporarily interrupting stitch formation in automatically controlled embroidering machines
US4075955A (en) * 1977-01-10 1978-02-28 Mattel, Inc. Machine for needlepoint or the like

Also Published As

Publication number Publication date
DE583893C (de) 1933-09-11
FR730878A (fr) 1932-08-25

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